Measuring-pump.



WITNESSES: "fan/# 141 W H. J. WIUHM'AN.

MEASURING PUMP.

APPLICATION FILED MAE.1,1909.

Patented Oct. 19,1909.

' 2 SHEETS-SHEET 1.

11v VENTOR.

Henry J- M'chman H. J. WIGHMAN.

.MBASURING PUMP.

uruonmn mum mu. 1, 1 909. 1 98, Patented Oct. 19, 1909. z sums-Burr z.

WITNESSES;

HENRY .i'wrontran, or" sea LOUIS, mrssounr.

, Manson:

937,198. Specification 'or' NG-PUM'P. 7

team went. Patented 0013.. 19.," 1909.

Application meanama 1, 1909. serial 1%. 480,616.

To all whom it may concern:

Be it known. that I, HENRY citizen of the United States, residing at St.Louis, State of Missouri, have'invented certain new and usefulImprovements in Measuring-Pumps, of which the, following is a fullclear, and exact description, reference I I being had to theaccompanying drawings,

forming a part hereof.

My mventlon has relation to lmproyements in measuring-pumps; and itconsists in the novel details of construction morefully set forth in'thespecification and point A: is a vertical section-on line however,

ed out in the claims.

In the drawings, Figure 1 is a combined side elenation and verticalsection of the pumponashe line 19-1 of Fig. 8; Fig. 2 isavertical'sectional detail on line 22 of Fig.

' 1 taken through the hollow rack bar; Fig. 3

is a cross-section on line 33 of Fig. 1; Fig. 4 of Fi 3 with thearresting stem of the indicator isk shoved-inward and turned ninety 4Fig. 6 isan enlarged side View of the ta pet-head or lug formed on thebracket w 1011 supports the oscillating rack' segme'nts; Fig. 7 is aface view of Fig. 6; Fig.

the pump; Fig.

cylinder on the line 99 of 10 is a face-view broken. I I v The object ofmy invention is to construct a pump primarily adapted for dis ensingoil, kerosene, gasolene and the like though applicable to pumpingallkinds of liquids) in which the stroke of the piston shall beregulated according to the volume or quantity of ii uid to be dispensed,such stroke Fig. 8; and Fig. of the rack-bar,- shown correspon ing tostandardiliquid units such as pints, quarts, half gallons and the likethough easily modified for liters and fractions thereof.

The purpose is to construct a pump which while not new inprinciple,shall possess details which renderthe device susceptible of ready andquickadjustment'; one which may be locked against the danger of beingtampered with by unauthorized persons, and one possessing further andother advantages better apparent from a detailed thereof which is asfollows Referring to the drawings, B, represents a suitable base towhich is bolted or tied the pump-cylinder C in the usual way, thecyldescri ption J. "1011 run,

f inder being provided with a discharge pipe 1] leading from the upperwall thereof, said pipe terminating in a discharge spout 'n ofwell'known construction, the passage thereof 5 being controlled by a.spring-actuated valve n which is unseated by the pressure of the liquidas it discharges, and autoi'natically closes or. seats under the actionof the spring ,9 when the discharge discontinues. The hollow base 13 hassuitable provision for screwing thereto a pipe 72, leading down to thesource of .liquid suppl anintake checkvalvea being positione above thepoint of attachment t for the inlet pipe. The piston l of thepump-cylinder has a check-valve 2, the piston-rod 3 passingthrough astuffinghox 4 in the top of the cylinder and connecting outside of thecylinder with a rack-bar The rack-bar is formed in cross-section asshown in Fig. 3, being substantially an open'bar with diverging walls5', 5, having housing or chamber 6 between them. Disposed along theclosed wall or face of the rackbar are a series of indicator disks orbuttons 7, having marks, 1 pt, 1 qt, 11}- q'ts, 9; gal. to indicate thequantity'of liquid to be dispensed or quantity drawn into the pumpcylinderjfor a given length of piston stroke.

a stem 8 loosely mounted in the rackbar, the stem operating in a hollowplugor bearing 9 which receives the stem, the plug being'adjustablevertically along an elongated slot or opening a formed in therack-bar, and when once adjusted is tightly clamped to the bar having ashoulder 11:. for engaging the inner face of the rack-barr when theparts are tightened. recessed or forked, the recess 1* beingcomparatively narrow, (Fig. 5). The inner end of the stem 8 providedwith a cross pin 11 which under .the action of the expanding spring 2'(interposed between the head 7 and rack 5) is drawn into the base of therecess for an outer position ofthe stem and button (Fig. 3) the'innerend of the stem under the circumstances coming flush with, the inner endof the plug. By pushing the button and stem inwardly until the pin 11'has passed beyond the end of "the plug, and then giving the stern a turnof ninety degrees, the.

thus hold the stem projecting beyond the plug as shown in Figs. 6t and5. one

Each button is fastened to the outer end of,

by a nut 10 passed over the plug, the latter pin 11 will engage the endof theplug and toothed edges, the walls 5, 0, thus forming a I The innerend of the plug 9 is piston are actuated by the oscillating toothed arcsor segments 14,14' pivoted to the bracket S on each side of'the arm l3and meshing with the toothed portions of the rack-bar. lhe forkedoperating handle H is coupled directly to the segments 14:.

Formed in the teppet block 12 is a trans verse recess or groovein whichoperates a sliding bolt 15 held against displacement or loss byecover-plate 16 secured and shouldered to the block, the'plate beingprovided with e key-hole it (Fig. 7) for receiving a key K insertedthrough an opening 72/ in the rack-bar, the end of the key engaging anotch e in the bolt and shiftin it in proper direction (with the turningor the key) to ccuseit to engs e an. cpenin 0 formed in the adjacentWtfl of the reek-oar. Theb'olt thus forced into the openin 0 locks theruck-her to the block 12 (an its arm 13) thus locking the rack-baragainst movement should an attempt be madeby unauthorized persons to.operate the 'urn Any kind of key or bolt may be emp eye that hereillustrated being a conventions one The belt is held in place b a spring17 drop ed into a socket of the-b ock 12 the spring eing confined by ascrew plug '18, es shown.

"The operation may be described as, follows: Amumingthe handle'to be inits-lowest position in which case the piston 1 will be at the bottom ofthe pump-cylinder git beingef courseunderstood that the inder; has-beenpreviously pumped full by a few strokes of the piston) and supposingtheo er'stonwishes to, dispense say 1% quarts p11 or other 11 1nd. Hethereuponpushee Hi the indicator utton 7 and its stem 8 asshown in Fig.4 whereupon with an upward oscillation of the handle H the rackber 5 andthe piston 1 a're'drawn upward, the oil from the pipe p following the ascending piston. When the inner projecting end of the indicator stem .8comes in contact or strikes the base of the tappet rib 12" the stroke ofthe piston-isarresteckand only that quantity of liquid which correspondsto the-particular length of stroke of the piston will be deliveredthrough the spout n. In Fig. l the third button with'its stem has beenshoved inward, sowith any given upward stroke oneend one-half quarts ofoil are dispensed: lithe customer desires on]. "a pint, then thethirdstem is released, an the top stem'of the series is ushed in. Theonly stem which strikes the r1 12 is the one which has been shoved in,the remaining es7,1os

stems of the series readily clearing the tap- Jct rib. Each clerk maycarry a key and lock the parts against movement by unauthorized personsby shovin the bolt 15 into the opening 0 of the mo bar 5 when the lattercan not be moved from its locked position until again released by thenext clerk having occasion to use tlie pump. In lieu of a rack andpinion connection between the piston and segments 14, any equ valentgearing may be substituted as obvious to the skilled mechanic. Ofcourse, the pump and pump valves ,are well known, nothing novel beingclaimed for the pump proper.

Having described my invention, what I claim is 1. In combination with apump cylinder having a reciprocating piston provided with a rod, anindicator movsbly coupled to the piston-rod of said piston, a tappet forintercepting'the indicator and thereby arresting further movement of thepiston, and means for shifting the indicator to clear the tappet.

2. In combination with-a pump-cylinder having a reciprocating pistonprovided wlth a rod, a series of indicator devices mounted on the rodand spaced apart, said devices being adjustable horizontally, and a.stationary arresting tcppet positioned 1n the path of the verticaltravel of said devices when they are adjusted in'one position andadapted to be cleared by said devices when they are not so adjusted. p 4

3. In combination with a pump-cylinder having a reciprocating piston, arack-bur connected. thereto and projecting outside of the cylinder, astationary tappet, a series of indicator devices composed of stemsdisposed alon the rack-bar and independently adjusta is to and from thetappet-whereby any stem may set to be impinged by'the tappet for amovement of the piston in one directlon and thereby arrest the ist-on.

4. In. combination wlth a pump cylinder having a reciprocating piston, arack-bar connected thereto, a supporting bracket, a; pair ofo'scillatingsegments mounted on the rhc'ket and engaging the rack-bar, a tappetblock or rib on saidbracket, u series of ndicater devices carried 1) 1the rack-bar and adapted to be intercepts by the tap et, blockaforesaid, and means on the tappet lock for interlocking with therack-bar and prevent movement of the piston either direction.

5. In combinatlon with a pump cylinder, a reciprocatingpiston, achambered rack-bar coupled thereto, a series of'rotatable stems securedto the face of the rack-bar, anouter terminal button for each stem, ahollow plu for each stein provided with an inner terminal recess, a pmon the stemadcpted to span the recess u onepe'rtial turning of the stem,the letter sing movable lou tudinally in the plu e. spring into usebetween the plug an its button, e eta ionery arm, atopames pet or impactblock on the arm projecting into the chamber of the rack-bar and adaptedto arrest a etennend oscillating toothed segments meshing with the teethof the rack-bar.

rack-bar, a stationary support a series of rotatable spring-controlledstems distributed along the rack-bar, means for shifting the stemslongitudinaliy in directions transverse to the axis of the rack-harwhereby for an inward movement of the stems the same may be brought intoposition to impinge against the stationary support, and for an outwardmovement thereof inny clear said support.

In testimony whereof I aiiix my signature, in presence of two witnesses.

HENRY J. WICHh L th". Witnesses "EMILSTAREK, I JOB. A. Mlormn.

